What is a "dryer sheet"?

A dryer sheet is a thin and disposable piece of material that is typically made of non-woven synthetic fabric and coated with a chemical softening agent. These sheets are added to a clothes dryer during the drying cycle to reduce static cling, soften fabrics, and impart a fresh scent to laundry. Dryer sheets work by coating the surface of clothing fibers with a layer of lubricating chemicals, which makes them less prone to sticking together and generating static electricity. They are a popular and convenient alternative to liquid fabric softeners, as they can be easily thrown into the dryer along with clothes and do not require any additional steps or measuring.